Merge changes I896af608,I2e2a65bc,I8d9ae8b9,Ibb07666a into nyc-mr1-dev

* changes:
  ContextHubService: Fix app query
  ContextHubService: Don't double report app loads
  ContextHubService: Make app handle size match Java
  ContextHubService: Update caches on nanoapp unload